Sanken Samco SVC06, Инструкция по эксплуатации, Страница: 109 / 136

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8
8-4 Alarm Status
7-segment monitor
display
Alarm description Check points Actions
Overspeed Over-shoot or under-shoot
happened? Confirm speed command value or
torque command value
Modbus communication
timeout Communication cable
disconnected? Confirm communication cables are
connected securely
The abnormality
in a board Has not a +V terminal of a
control circuit terminal overload
or short-circuited?
The resistance of potentiometer linked
to a +V
terminal is made into a proper
value.
Power supply
abnormality +24V power supply output from
the control circuit overloaded or
shorted? Check the +24V output power supply
for load conditions
Missing output phase Missing an output phase? Connect the output cables securely
Missing input phase Missing an input phase? Check and improve the input current
Check grounding
short-circuit current Short-circuited when grounding? Confirm output cable and motor
insulation performance
Disconnection of PG
pulse feedback signal
cable
Position deviation
counter abnormality Feedback signal cables are well
connected?
Is motor being driven by other
force? Connect the feedback signal cable
securely
Redesign the system so that the motor
is not driven by external force.
Cooling fan
abnormality Cooling fan is working? Check the fan performance
Main relay abnormality Turn off the power and wait until
the CHARGE lamp turns off, turn
the power on again and check the
alarm. Contact the supplier
※
1: Since all function data are initialized to the factory presets, settings will need to be input again.
※
2: After several times of power on/off, contact your supplier if the alarm is displayed again.
※
3: Even though a protective function against short-circuit of the main switch element is installed, repeated
short-circuiting may cause deterioration of the elements and lead to damages to the inverter. Therefore the inverter
can only be restarted after checking and removing the cause of the problem.
* If the display on the operation panel goes out for some reason, turn off power supply to the inverter to check the
wiring; then turn the power on after CHARGE lamp has gone out. (Short-circuiting caused by improper connection
of control terminals and so on)